Rheometry


Rheometry refers to the experimental technique used to determine the rheological properties of materials; rheology being defined as the study of the flow and deformation of matter which describes the interrelation between force, deformation and time. The term rheology originates from the Greek words ‘rheo’ translating as ‘flow’ and ‘logia’ meaning ‘the study of’, although as from the definition above, rheology is as much about the deformation of solid-like materials as it is about the flow of liquid-like materials and in particular deals with the behavior of complex viscoelastic materials that show properties of both solids and liquids in response to force, deformation and time.

Published 27 Dec 2018

Tools for a comprehensive characterization of Li-ion batteries

With the holidays behind us, there are countless people who are starting to set up various portable electronic devices they received as presents this year. Inside those devices, including mobile phones, laptops and new ‘wearables,’ are advances in battery technology…READ MORE >

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Published 9 Nov 2018

Roofing Asphalt Characterization Techniques for Improved QC

Commentary, courtesy of Everett Crews (Ingevity), and AMAP Although the history of the scientific study of the flow of matter is replete with names of our greatest thinkers, from Aristotle, Galileo, and Newton to Maxwell, Edison, and Einstein, the term…READ MORE >

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Published 4 Oct 2018

Using creep testing to determine viscoelastic information quickly and easily

The most common approach for measuring time-dependent viscoelastic properties of a material on a rotational rheometer is to perform small amplitude oscillatory shear (SAOS) over a range of oscillation frequencies – commonly referred to as a frequency sweep – where…READ MORE >

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Published 25 Sep 2018

Asphalt, asphalt binder, asphalt cement or bitumen?

So, which is it? I get asked this simple question more and more with the increased interest in Superpave. Superpave (SUperior PERforming Asphalt PAVEments) was developed by the Strategic Highway Research Program (SHRP) in the United States to help improve performance,…READ MORE >

Published 20 Jun 2018

Smoothie Wars! Which blends the best?

Here at Malvern Panalytical, we seem to enjoy testing the rheological properties of drinks, particularly those of the alcoholic variety! John Duffy and Steve Carrington looked into the differences between traditional ales and they explored the properties of Guinness. Any excuse…READ MORE >

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